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# From MitDavidDv: Problem Solving Question

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Manager
Joined: 28 Jan 2011
Posts: 77
Location: Tennessee
Schools: Belmont University
Followers: 1

Kudos [?]: 16 [0], given: 56

From MitDavidDv: Problem Solving Question [#permalink]  01 Jun 2011, 12:31
00:00

Difficulty:

(N/A)

Question Stats:

58% (02:33) correct 42% (01:13) wrong based on 21 sessions
A certain taxi company charges \$3.10 for the first 1/5 of a mile plus \$0.40 for each additional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?
A. \$15.60
B. \$16.00
C. \$17.80
D. \$18.70
E. \$19.10
Manager
Joined: 28 Jan 2011
Posts: 77
Location: Tennessee
Schools: Belmont University
Followers: 1

Kudos [?]: 16 [1] , given: 56

Re: From MitDavidDv: Problem Solving Question [#permalink]  01 Jun 2011, 12:45
1
KUDOS
Shalom!
The first mile is computed as:
\$3.10 + \$1.60 ( \$0.40*4) = \$4.70
The second thru eighth miles are computed as:
\$2.00 ( \$0.40*5) X 7 miles = \$14.00

Therefore \$4.70 + \$14.00= \$ 18.70
The answer is D.

Metzuyan! I think I am getting the hang of this!
Current Student
Joined: 26 May 2005
Posts: 571
Followers: 18

Kudos [?]: 104 [1] , given: 13

Re: From MitDavidDv: Problem Solving Question [#permalink]  01 Jun 2011, 12:56
1
KUDOS
total miles 40 (8/1/5)
first 1/5 miles = 3.1
next 39 = 39*.4 = 15.6
total 18.7
Director
Joined: 01 Feb 2011
Posts: 770
Followers: 14

Kudos [?]: 81 [0], given: 42

Re: From MitDavidDv: Problem Solving Question [#permalink]  01 Jun 2011, 14:52
first 1/5 mile charge = \$3.10

rest of the miles = 8 - (1/5) = 39/5

charge for the rest of the miles = 39 *0.4 = 15.6

total charge = 3.10+15.6 = 18.7

Re: From MitDavidDv: Problem Solving Question   [#permalink] 01 Jun 2011, 14:52
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# From MitDavidDv: Problem Solving Question

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